Two pairs of independently segregating genes with two alleles each, A/a and B/b, determine plant height additively in a population. The homozygote AA BB is 50 cm tall, and the homozygote aa bb is 30 cm tall. a. What is your prediction of the height in a cross between the two homozygous stocks? b. What genotypes in the will show a height of 40 cm after an cross? c. What will be the frequency of the 40-cm plants? d. What assumptions have you made in answering this question?

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.